polyserositis pol·y·se·ro·si·tis (pŏl’ē-sēr’ō-sī’tĭs) n. Chronic inflammation of several serous membranes with effusions in serous cavities resulting in fibrous thickening of the serosa and constrictive pericarditis. Also called Concato’s disease.

[pol-ee-sohm] /ˈpɒl iˌsoʊm/ noun, Biology. 1. a complex of strung along a single strand of messenger RNA that translates the genetic information coded in the messenger RNA during protein synthesis. /ˈpɒlɪˌsəʊm/ noun 1. another name for polyribosome polysome pol·y·some (pŏl’ē-sōm’) n. See polyribosome.

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